Profile form submission fails silently

[holmesg]

Using CiviCRM  4.4.3. on Joomla 2.5.17.

We have a profile form that had been working, but now fails silently. No PHP error log, nothing in the CiviCRM log. Just redirects to the home page.

How can I troubleshoot this?

[petednz]

probably can't help other than ask the obvious.
do you have debug on?
can you replicate on demo site?

[holmesg]

CiviCRM debug?  No, because it is a production site.

Just now I turned it on very briefly and did a submission (which silently redirected to the home page). Got the Smarty debug console popup. Didn't see anything terribly enlightening there - suggestions on what to look for?

I'm assuming that the fatal error template isn't getting called, as I don't see anything in it that would redirect to the home page?

[JohnFF]

Hi there holmesg,

Sorry to hear you're having problems. Do you have any custom moxules or extensions? Perhaps they aren't as 4.5 compatible as they claim...

[holmesg]

OK, I notice something odd (possibly).

In the source for the page is this:

CRM.url('init', '/index.php?option=com_civicrm&task=civicrm/example&Itemid=337&placeholder');


Not exactly sure what that does, but if I manually load it it gets a big fat CiviCRM error.

What should that line read?